{"uid":"cap_R_OVC5qnuYKR1WNyTt-JB","slug":"optn-peld-cr-calculator-table-9-1-793d2c8a","name":"OPTN PELD-Cr Calculator (Table 9-1)","description":"OPTN Policy 9 Table 9-1 PELD-Cr from age, albumin, bilirubin, INR, creatinine or dialysis/CVVHD, and caller-assigned minimum CDC height or weight Z-score. PELD = (sum of Table 9-1 terms + 1.5287) × 10 + 2.82; nearest integer; minimum 6. Albumin, bilirubin, and INR floor at 1.0; creatinine 1.3 mg/dL if >1.3 or dialysis/CVVHD. Not a transplant listing order. magent does not compute CDC LMS Z from height or weight.","url":"https://api.magentlab.com/api/calc/peld_cr","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"headers":{"type":"object","additionalProperties":{"type":"string"}},"queryParams":{"type":"object","required":["age_years","inr","dialysis_or_cvvhd","min_cdc_z"],"properties":{"inr":{"type":"number","description":"INR (0.8-20). Policy floors at 1.0; Table 9-1 knots at 2 and 10."},"age_years":{"type":"number","description":"Age in fractional calendar years (0 to under 12). Table 9-1 uses 1.0 below age 1 and 5.5 above 5.5 years. PELD-Cr is for candidates under 12."},"min_cdc_z":{"type":"number","description":"Caller-assigned minimum of CDC 2000 height or weight Z-score (LMS). magent does not compute Z from height or weight. Table 9-1 clamps -5.0 to -2.1."},"albumin_g_l":{"type":"number","description":"Serum albumin in g/L (1-60). Converted as g/dL = g/L / 10."},"albumin_g_dl":{"type":"number","description":"Serum albumin in g/dL (0.1-6). Provide this or albumin_g_l, not both. Policy floors at 1.0; Table 9-1 uses ln(1.9) above 1.9."},"bilirubin_mg_dl":{"type":"number","description":"Total bilirubin in mg/dL (0.1-80). Provide this or bilirubin_umol_l, not both. Policy floors at 1.0; Table 9-1 knots at 4 and 40."},"bilirubin_umol_l":{"type":"number","description":"Total bilirubin in µmol/L (2-1368). Converted as mg/dL = µmol/L / 17.1."},"creatinine_mg_dl":{"type":"number","description":"Serum creatinine in mg/dL (0.1-20). Provide this or creatinine_umol_l, not both. Table 9-1 floors at 0.2 and assigns 1.3 if >1.3 or dialysis_or_cvvhd is true."},"creatinine_umol_l":{"type":"number","description":"Serum creatinine in µmol/L (9-1768). Converted as mg/dL = µmol/L / 88.42."},"dialysis_or_cvvhd":{"type":"boolean","description":"True when the candidate had two or more dialysis treatments in the prior 7 days, or 24 hours of CVVHD in the prior 7 days. Assigns creatinine 1.3 mg/dL."}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_TC1vwS4dmG1uAR2ep2T2K","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Calculates the OPTN Policy 9 Table 9-1 PELD-Cr score for pediatric liver transplant candidates under age 12 using age, albumin, bilirubin, INR, creatinine/dialysis status, and CDC growth Z-score.","exampleAgentPrompt":"Calculate the OPTN PELD-Cr score for a 3.5-year-old with albumin 2.1 g/dL, total bilirubin 8.5 mg/dL, INR 1.8, creatinine 0.6 mg/dL, not on dialysis, and a minimum CDC growth Z-score of -2.5.","exampleUseCases":[{"title":"Infant liver failure PELD scoring","prompt":"What's the PELD-Cr score for a 0.8-year-old infant with albumin 1.5 g/dL, bilirubin 12 mg/dL, INR 2.5, creatinine 0.3 mg/dL, not on dialysis, and a minimum CDC Z-score of -3.2?"},{"title":"Child on dialysis with biliary atresia","prompt":"Compute the PELD-Cr for a 5-year-old on dialysis twice last week, with albumin 18 g/L, bilirubin 340 µmol/L, INR 3.1, and a minimum CDC height or weight Z-score of -2.8."},{"title":"Serial PELD monitoring for transplant candidate","prompt":"My 9-year-old patient's latest labs are albumin 2.8 g/dL, bilirubin 4.2 mg/dL, INR 1.6, creatinine 1.1 mg/dL, not on dialysis, and CDC Z-score minimum is -1.9 — what is the current PELD-Cr score?"}],"resultDescription":"Returns the PELD-Cr integer score computed per OPTN Policy 9 Table 9-1, applying policy floors (albumin, bilirubin, INR floored at 1.0; creatinine capped at 1.3 mg/dL if elevated or on dialysis/CVVHD), with a minimum reported score of 6. Does not return a transplant listing order.","failureModes":["Missing required parameters (age_years, inr, dialysis_or_cvvhd, min_cdc_z) returns validation error","Age outside 0–12 range is out of scope for PELD-Cr","Providing both albumin_g_dl and albumin_g_l simultaneously causes an error","Providing both bilirubin units or both creatinine units simultaneously causes an error","Payment failure or missing x402 payment header returns 402 status","min_cdc_z not pre-computed by caller — magent does not derive Z from raw height/weight measurements"],"whenToPreferThis":"Use this endpoint when you need a standards-compliant PELD-Cr score per OPTN Policy 9 Table 9-1 for a pediatric candidate under age 12, especially when you already have the CDC LMS Z-score pre-calculated and need precise policy-conformant flooring and knot logic applied automatically. Prefer it over manual computation to ensure exact policy compliance including creatinine capping, albumin/bilirubin/INR floors, and age-band clamping.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T06:45:18.981Z","isFirstParty":false}